Thanks for answer. I will look for info about eval (Expert User Guide - I know where ;) ) But, even, if this works, what with Guvnor, and GUI based rule constructor? How can I do it with Guvnor GUI?
2010/8/6 Swindells, Thomas <[email protected]> > Have you looked at eval()? > > > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *tom ska > *Sent:* 06 August 2010 10:49 > *To:* [email protected] > *Subject:* [rules-users] Math calculations on attributes in WHEN section > of rules. > > > > Hello, > what I want to do, is to calculate on object's attributes in WHEN section > of rule. Can I do it? > > For example: > > class CObj > { > private int k; > private int n; > > // setters and getters > } > > Now what I want to do is: > > rule "r1" > when > p : CObj ( k + n <= 1000) > then > System.out.println("We love Drools :)"); > end > > Why can't I construct conditions like in Java, or C++ (with calculations in > conditions)? How can I achieve my goal? > > Thx, > Tom. > > ------------------------------ > > > ************************************************************************************** > This message is confidential and intended only for the addressee. If you > have received this message in error, please immediately notify the > [email protected] and delete it from your system as well as any copies. > The content of e-mails as well as traffic data may be monitored by NDS for > employment and security purposes. To protect the environment please do not > print this e-mail unless necessary. > > NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18 > 4EX, United Kingdom. A company registered in England and Wales. Registered > no. 3080780. VAT no. GB 603 8808 40-00 > > ************************************************************************************** > > _______________________________________________ > rules-users mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/rules-users > >
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